US2975663A - Rolling mill - Google Patents

Rolling mill Download PDF

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Publication number
US2975663A
US2975663A US708790A US70879058A US2975663A US 2975663 A US2975663 A US 2975663A US 708790 A US708790 A US 708790A US 70879058 A US70879058 A US 70879058A US 2975663 A US2975663 A US 2975663A
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United States
Prior art keywords
rolls
roll
working
sections
rings
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US708790A
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English (en)
Inventor
Franz G Platzer
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Individual
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Individual
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Publication of US2975663A publication Critical patent/US2975663A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/18—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for step-by-step or planetary rolling; pendulum mills
    • B21B13/20—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for step-by-step or planetary rolling; pendulum mills for planetary rolling

Definitions

  • This invention relates to a rolling milljof" the type which is provided with working rolls andjintfermediate rolls revolving ⁇ about stationary roll supporting means and which is characterized by the factA that those elei ments which, while also revolving about the supporting means,4 keep the rolls at the proper spacing and with parallel axes, are at the same time constructed to serve as the means for transmitting the driving forces to the rolls, while those.
  • revolving elements whichA support, guide and drive the working rolls and the intermediate rolls are constructed asrigid, annular and rotatable roller cages, the working and vintermediate rolls being, respec- -tively, linked to the roller cages by means of levers and A ⁇ abutting against a cam surface equipped control track under the force Vof a spring.
  • the controll of the working and intermediate rolls is effected p linking the working rolls to the rollers cages through the intermediary of, levers and by connecting the work ing rollstothe intermediate rolls through the intermediary of afpalrallelograml or 'quadrilateral linkage as well as Tjwith a control lever which is subjected to the force of a spring and ⁇ in known manner carries a roller contacting a predetermined cam surface.
  • the control is effected by Virtue of the fact that the working and intermediate rolls areV 'j ournalledby means lof their trunnions in structural'elel meritjs which aredisplaceable by means of springs in 'guides 'associata'.l,V respectively, with one working ⁇ roll and one'intermediate rolls, and extending from one sidey of Vtherolling mill to the other, ⁇ while the head ends ofthe bearing ⁇ bodies whichuare
  • ThisV necessitates that thel I stock mustv be advanced step by step over short time intervals amounting to a fraction of a second at most, each such time intervalY starting from the instant when one pair of rolls has just left the stock and lasting only as long as the stock has not ye't been engaged by the next pair of rolls. Since, in known rolling mills, the Working rolls engage the stock in rapid sequence, there results a correspondingly largev number of forward or feed displacements per unit of time.
  • the faultless operation 'of 'a feed device adapted for these operational conditions e aiis provision of complicatedstructeries and a continu- :dus supervisin ih order to Vensure operation in proper "timed sequence.
  • each working roll is so supported on a pair of intermediate rolls that the above referred to disadvantage resulting from Vcreation of a moment arm between a working roll and the associated intermediate roll is avoided.
  • the intermediate rolls are so constructed that employment of a device for stepwise advance or feed of thel rolling stock may be dispensed with and the latter advanced uninterruptedly and uniformly.
  • each of the intermediate rolls consists of a number of roll sections serially arranged in axial direction, and of connecting elements located between these roll sections and adapted to maintain predetermined spacings therebetween, the roll sections each consisting of an outer ring and an inner ⁇ ring with the inner rings being iixed to axles non-rotatably mounted on the roller cages and providdin part with concentric and in part with eccentric peripheral surfaces relative to the central axis of the axle.
  • 'Ihe roll sections are preferably made alternatngly of diiferent widths and so mounted on the axles of the Vintermediate rolls that for each pair of such intermediate rolls,ia section of Vlesser width'lies opposite-a section of greater width.
  • This arrangement has the advantage that the working rolls which contact the wider sections of the ⁇ intermediate rolls run on overlapping surfaces, whereby no grooves which could be transferred to the stock being rolled can be formed on the peripheral surfaces of the working rolls.
  • Fig. l is a vertical section through the rolling mil-1;
  • Fig. 2 is a partly sectional side elevational view on an 4enlarged scale of fa working Vroll with associated inter- -i mediate rolls; t
  • Fig. 3 is a plan View of thestructure shown in Fig. 2;
  • Fig. 4 is an end elevational view of the lstructureshown VinFig. ⁇ 2;and 1 k;
  • Figs. 5V to 7 show, on a still morelenlarged'scale, an
  • each supporting body 20 and 21 Mounted on the adjacent sides of the supporting bodies 20 and 21 are guide pieces 23 and 24 which provide both converging surfaces 23 and 24' and parallel surfaces 23 ⁇ and 24".
  • the peripheral surface of each supporting body departs from a purely circular configuration at both sides of the associated guidepiece so that its peripheral surface contains both converging and diverging regions.
  • the supporting means or bodies 20 and 21 are surrounded by rotatable and drivably mounted roller cages 34 and 35 to which the working rolls 16 and 17 are linked by means of levers 36 and 37. These levers are swingable about pivots 96 and 97 provided on the roller cages and carry at their ⁇ free ends bearings 98 (see Fig. 2) for the working rolls as well as a carrier element 99. Between each two oppositely located carrier elements 99 is arranged a respective one of the pairs of intermediate rolls 25-25' and 26-26.
  • Each of the intermediate rolls consists of a number of roll sections arranged serially in axial direction on a respective one of the axles 100 and 100', the sections, as shown in Fig. consisting of rings 101 and 102. These rings are mounted through the intermediary of rollers 103 and 104 on inner rings 105 and 106 which are iixed to the axles 100 and 100.
  • the inner rings have peripheral surfaces which are in part concentric and in part eccentric with respect to the center of the respective axle. Inthe illustrated embodiment, inner rings with concentric surfaces alternate with inner rings of eccentric surfaces.
  • the eccentricity of the inner rings is radial and outwardly, i.e., in a direction opposite to the roll pressure, as a result of which the working rolls supported by the intermediate rolls lie only on the rings 102 which project beyond the rings 101.
  • the rings 101 in contradistinction to this, extend beyond the rings 102 in the direction of the roll pressure, so that they lie only on the lassociated support body or the guide piece thereof. Between the rings 101 and 102, there is provided no rotational connection; these rings thus can rotate independently of one another on the associated inner rings 105 and 106.
  • each ring of lesser width is followed by a ring of larger width.
  • the rings 102 serving to support the Working rolls are made of larger width.
  • the various rings of each pair of intermediate rolls are so arranged that a ring of larger width of one of the intermediate rolls of each pair lies opposite a ring of lesser width of the other intermediate roll of the same pair.
  • the rings of larger width thus form overlapping bearing'surfaces for the working rolls supported thereon during the rolling operation. Formation of grooves on the peripheral surfaces of the working rolls, which might be expected with spaced Supporting surfaces, is avoided as a result of this overlapping.
  • the axles 100 and 100 of each pair of intermediate rolls are connected with one another at their ends by means of butt-plates 107 and additionally by means of butt-plates 10S disposed in the spaces between the roll sections 101,--105 and 102-106.
  • the butt-plates are the different widths of the roll sections and serve to take up the considerable lateral forces arising during the rolling operation and to avoid, by virtue of their distribution over their enti-re lengths Fof the intermediate rolls, a bending of the latter and of the associated working rolls.
  • the levers 36 and 37 are preferably provided with counter-weights 110 (Fig. 4) in order to compensate for the centrifugal forces which arise due to the rotation of the roller cages by the working and intermediate rolls and which tend to lift these rolls from the supporting bodies.
  • a rolling mill equipped with stationary supporting means including respective peripheral guidesurfaces each provided with a cam portion, rigid, annular and drivable roller cages mounted to revolve about said supporting means and said guide surfaces thereof, a plurality of levers linked to said roller cages, a plurality of axially parallel working rolls each rotatably carried by a respective one of said levers, a plurality of intermediate rolls carried by said roller cages in axially parallel relationship to and supporting said working rolls, and spring means biasing said working rolls against said intermediate rolls and the latter against said control surfaces of said supporting means; said intermediate rolls being arranged in pairs with each pair supporting one of said working rolls, each of said intermediate rolls comprising a plurality of roll sections all of equal diameter arranged axially along the axle, a connecting element disposed between each two adjacent roll sections for ensuring a predetermined spacing therebetween, each of said roll sections comprising an inner ring fixed to said axle, and an outer ring rotatably mounted on said inner ring, said inner rings being arranged in a first group and
  • said spring means comprising a plurality of tension springs each connected between a respective one of said levers and the corresponding one of said roller cages.
  • a rolling mill of the type described including at least one guide surface, at least one working roll, a pair of intermediate rolls rolling on said guide surface and spacing said working roll from said guide surface, each of said intermediate rolls comprising two groups of roll sections all of the same diameter arranged alternately along the length of each said roll, theaxis of said groups Yof roll sections being parallel to each other and spaced so that one group of roll sections rolls only on said guide surface independently of the other group of roll sections whichy roll only on said working roll.
  • An intermediate roll for a rolling mill ofk having an associated support body and at least one working roll spaced by at least one intermediate roll from said support body, said intermediate roll comprising an axle, a number of roll sections arranged along said axle forming two groups of roll sections, each of said sections including an outer ring and anr inner ring, said roll sections of said groups of roll-sections being alternately concentric with said axle and eccentric to said References Cited in the le of this patent UNITED STATES PATENTS 771,611 Davis oct. 4, 1904 1,708,185 Mattei Apr. 9, 1929 1,824,211 Jobke sept. 22, 1931 2,273,122, Maussnest Feb. 17, 1942 2,709,934 Platzer June 7, 1955 2,718,827 Whittum sept. 27, 1955 FOREIGN PATENTS 655,190 Great Britain July 11, 1951 717,203 oct. 20, 1954 Great Britain

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Metal Rolling (AREA)
  • Rolling Contact Bearings (AREA)
  • Crushing And Grinding (AREA)
US708790A 1957-01-26 1958-01-14 Rolling mill Expired - Lifetime US2975663A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP17857A DE1140534B (de) 1957-01-26 1957-01-26 Planetenwalzwerk

Publications (1)

Publication Number Publication Date
US2975663A true US2975663A (en) 1961-03-21

Family

ID=44486062

Family Applications (3)

Application Number Title Priority Date Filing Date
US708790A Expired - Lifetime US2975663A (en) 1957-01-26 1958-01-14 Rolling mill
US726859A Expired - Lifetime US2960894A (en) 1957-01-26 1958-04-07 Rolling mill installation
US113931A Expired - Lifetime US3153955A (en) 1957-01-26 1961-05-31 Rolling mill

Family Applications After (2)

Application Number Title Priority Date Filing Date
US726859A Expired - Lifetime US2960894A (en) 1957-01-26 1958-04-07 Rolling mill installation
US113931A Expired - Lifetime US3153955A (en) 1957-01-26 1961-05-31 Rolling mill

Country Status (4)

Country Link
US (3) US2975663A (de)
DE (3) DE1260417B (de)
FR (1) FR1215979A (de)
GB (3) GB822132A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3468149A (en) * 1965-09-23 1969-09-23 Fritz Ungerer Plate straightening machine
US4019358A (en) * 1973-05-10 1977-04-26 Firm Josef Frohling Rolling mill
US5133205A (en) * 1990-11-13 1992-07-28 Mannesmann Aktiengesellschaft System and process for forming thin flat hot rolled steel strip
US5170652A (en) * 1990-11-02 1992-12-15 Mannesmann Aktiengesellschaft Planetary rolling mill
US5187965A (en) * 1990-06-15 1993-02-23 Mannesmann Aktiengesellschaft Roll stand for a planetary rolling mill

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1260417B (de) * 1957-01-26 1968-02-08 Peter Platzer Dr Planeten-Walzwerk
US3439519A (en) * 1967-04-25 1969-04-22 Jones & Laughlin Steel Corp Billet roughing mill
US3595054A (en) * 1969-05-01 1971-07-27 Tadeusz Sendzimir Double three high planetary mill
EP0248764A1 (de) * 1986-06-04 1987-12-09 Larex Ag Walze für die Fortbewegung von heissem Fördergut, insbesondere von Metallplatten oder -bändern, und Verfahren zum Unterhalt dieser Walze
DE3826822A1 (de) * 1988-08-06 1990-02-15 Krupp Gmbh Walzgeruest fuer flachprodukte
DE3904166A1 (de) * 1989-02-11 1990-08-16 Mannesmann Ag Planetenwalze fuer ein planetenwalzwerk
DE3928962C1 (de) * 1989-08-29 1990-12-06 Mannesmann Ag, 4000 Duesseldorf, De
DE4442361C1 (de) * 1994-11-18 1996-03-07 Mannesmann Ag Planetenwalzwerk
US6304728B1 (en) 2000-03-14 2001-10-16 Concord Camera Corp. Camera with flash unit disposed in between viewfinder lenses
CN103920713B (zh) * 2014-04-23 2016-03-30 武汉钢铁(集团)公司 双行星系轧辊

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US771611A (en) * 1901-12-12 1904-10-04 Nat Tube Co Swaging-mill.
US1708185A (en) * 1927-02-12 1929-04-09 Mattei Diego Plate-rolling mill
US1824211A (en) * 1928-05-02 1931-09-22 August F Jobke Rolling mill
US2273122A (en) * 1940-09-28 1942-02-17 Friedrich K Maussnest Roll structure for employing small diameter working rolls in the leveling of sheet and strip material
GB655190A (en) * 1948-07-14 1951-07-11 Armco Int Corp Planetary rolling mill
GB717203A (en) * 1951-06-08 1954-10-20 Franz Platzer An improved device and process for rolling metal and other materials
US2709934A (en) * 1953-09-18 1955-06-07 Platzer Franz Rolling mill
US2718827A (en) * 1952-10-08 1955-09-27 Farrel Birmingham Co Inc Paper calender

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189912747A (en) * 1899-06-19 1900-04-07 Heinrich Ehrhardt Improvements in or relating to Machines for Rolling Blanks, Tubes, and the like.
FR411566A (fr) * 1909-03-30 1910-06-20 Mannesmannroehren Werke Soc Laminoir avec mouvement satellite des cylindres travailleurs
AT183398B (de) * 1951-06-08 1955-10-10 Franz Dr Platzer Einrichtung zum Walzen von Material, insbesondere metallischem Material
DE956393C (de) * 1953-09-18 1957-01-17 Dr Franz Platzer Walzwerk
GB787442A (en) * 1954-11-11 1957-12-11 Innocenti Soc Generale Method and apparatus for rolling seamless tubes
DE1260417B (de) * 1957-01-26 1968-02-08 Peter Platzer Dr Planeten-Walzwerk
GB871997A (en) * 1958-01-03 1961-07-05 Ici Ltd Method of and apparatus for reducing the thickness of metals

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US771611A (en) * 1901-12-12 1904-10-04 Nat Tube Co Swaging-mill.
US1708185A (en) * 1927-02-12 1929-04-09 Mattei Diego Plate-rolling mill
US1824211A (en) * 1928-05-02 1931-09-22 August F Jobke Rolling mill
US2273122A (en) * 1940-09-28 1942-02-17 Friedrich K Maussnest Roll structure for employing small diameter working rolls in the leveling of sheet and strip material
GB655190A (en) * 1948-07-14 1951-07-11 Armco Int Corp Planetary rolling mill
GB717203A (en) * 1951-06-08 1954-10-20 Franz Platzer An improved device and process for rolling metal and other materials
US2718827A (en) * 1952-10-08 1955-09-27 Farrel Birmingham Co Inc Paper calender
US2709934A (en) * 1953-09-18 1955-06-07 Platzer Franz Rolling mill

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3468149A (en) * 1965-09-23 1969-09-23 Fritz Ungerer Plate straightening machine
US4019358A (en) * 1973-05-10 1977-04-26 Firm Josef Frohling Rolling mill
US5187965A (en) * 1990-06-15 1993-02-23 Mannesmann Aktiengesellschaft Roll stand for a planetary rolling mill
US5170652A (en) * 1990-11-02 1992-12-15 Mannesmann Aktiengesellschaft Planetary rolling mill
US5133205A (en) * 1990-11-13 1992-07-28 Mannesmann Aktiengesellschaft System and process for forming thin flat hot rolled steel strip

Also Published As

Publication number Publication date
DE1260417B (de) 1968-02-08
DE1167301B (de) 1964-04-09
GB828128A (en) 1960-02-17
FR1215979A (fr) 1960-04-21
DE1140534B (de) 1962-12-06
US2960894A (en) 1960-11-22
GB928368A (en) 1963-06-12
US3153955A (en) 1964-10-27
GB822132A (en) 1959-10-21

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